en:puus_setup
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en:puus_setup [2023/01/10 15:49] – puu | en:puus_setup [2023/02/06 12:16] (current) – [Outdoor heat exchanger sensor] puu | ||
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- | ====== | + | ====== |
- | ==== Outdoor unit opened ==== | + | * My slightly modified MitsuRunner software on GitHub: https://github.com/ |
- | {{:en:1613833132673.png|}} | + | |
- | ==== Defrost thermistor' | + | Notable changes to the original SW and HW: |
- | {{: | + | * Two additional Dallas sensors in heat exchanger pipes (used for research and as spare parts) |
+ | * Current clamp sensor monitoring input power of the heat pump | ||
+ | * Variable temperature delta threshold to start defrosting: | ||
+ | * if (input) power < 500W, threshold | ||
+ | * if 900W <= power < 1000W, threshold | ||
+ | * if power >= 1000W, threshold = 6 | ||
+ | \\ \\ | ||
+ | ---- | ||
+ | |||
+ | ===== MitsuRunner wiring | ||
+ | ==== Defrost thermistor' | ||
+ | {{: | ||
+ | {{: | ||
+ | \\ \\ | ||
==== Defrost hack wires installed ==== | ==== Defrost hack wires installed ==== | ||
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==== MitsuRunner' | ==== MitsuRunner' | ||
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---- | ---- | ||
===== Sensors ===== | ===== Sensors ===== | ||
- | ==== Outdoor heat exchanger | + | ==== Outdoor heat exchanger sensor ==== |
- | {{:en: | + | Outdoor heat exchanger sensor (vertically installed on the lowest pipe) and two additional sensors just in case |
+ | {{: | ||
+ | {{: | ||
+ | \\ \\ | ||
+ | ==== Middle DS18B20 is used for MitsuRunner, | ||
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+ | \\ \\ | ||
==== Outdoor temperature sensor ==== | ==== Outdoor temperature sensor ==== | ||
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- | + | ||
- | ==== One spare sensor on upper pipe ==== | + | |
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---- | ---- | ||
===== Enclosure ===== | ===== Enclosure ===== | ||
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---- | ---- | ||
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==== Defrost thermistor insulated ==== | ==== Defrost thermistor insulated ==== | ||
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- | ==== Holes drilled to avoid ice accumulating: ==== | + | ==== Holes drilled to avoid ice accumulating ==== |
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en/puus_setup.1673358591.txt.gz · Last modified: 2023/01/29 21:54 (external edit)